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Schematic of corticohippocampal circuitry depicting multiple cortical and subcortical connections between PoSub and brain regions involved in contextual and auditory fear conditioning. Thicker arrows denote more dense connections. PoSub, postsubiculum; RSP, retrosplenial cortex; ENTO, entorhinal cortex; PER, perirhinal cortex; HIPPO, hippocampus.
